INVESTIGADORES
NIEVA Gladys Leonor
artículos
Título:
Angular restrictions on the glass transition and on the c-axis correlated liquid phase in twinned YBa2Cu3O7-δ
Autor/es:
MORRÉ, E.; GRIGERA, S.A.; OSQUIGUIL, E.; NIEVA, G.; DE LA CRUZ, F.
Revista:
PHYSICS LETTERS A
Editorial:
ELSEVIER SCIENCE BV
Referencias:
Año: 1997 vol. 233 p. 130 - 134
ISSN:
0375-9601
Resumen:
We have measured the angular dependence of the vortex velocity correlation temperature Tth(H) in twinned YBa2Cu3O7-δ single crystals. The data show that the c-axis correlated vortex liquid phase exists up to angles much larger than expected within a single vortex pinning picture. Despite this, the second-order solid-liquid glass transition is shown to be restricted only to external magnetic fields applied within a few degrees from the c-axis direction. © 1997 Elsevier Science B.V.
